The QB&SA recently purchased some new 1g snooker balls and billiard (measle) balls.
These balls are rated to be within 1g of each other within any one set. They are not within 1g of a standard weight.
Please do not swap balls from one set to another.
We have been able to guarantee the billiard ball sets are within .5g in any one set and so there should be no complaints about their reaction behaviour.